Paper-tape folder.



W. H.' MCBRIDE.

PAPER TAPE FOLDER.

APPLICATION FILED SEPT. 4. I9I5.

Patented July 24, 1917.

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' PAPER TAPE FOLDER.

APPLICATION FILED SEPT. 4 1915.

Patented July 24, 1917.

W. H. McBRlDE.

PAPER TAPE FOLDER.

APPLICATION FILED SEPTI. 4, I9I5- Patented July 24, 1.917.v

hl 1F@ STAFF@ WILLIAM Ii'. IVICBRIDE, OF ST. LOUIS, MISSOURI.

PAPER-TAPE FOLDER.

Application filed September 4, 1915.

To all zc/wm it may concern.'

lie it known that I, VILLIAM H. MGBRIDE, a citizen of the United States,and a resident of the city of St. Louis and State of lvlissouri, haveinvented a certain new and useful Improvement in Paper-Tape Folders, ofwhich the following is a specification.

This invention relates to a new system of handling and preservingrecords in strip form, and more particularly to folding up into bookform such long narrow strips of paper as are used in adding machines forrecording the items totaled. The invention has for its objects to makeup such strips .3 or tape into a form which is convenient for handlingand inspection, and which is compact and adapted for tiling and forpermanent preservation.

Further objects and details of the invention appear in connection withthe following description of a suitable folding machine for performingthe invention; and what the invention consists in is more particularlydefined in the appended claims.

In the accompanying drawings, wherein the same reference charactersdesignate like parts in the several views,

Figure 1 is a front view of a suitable machine for carrying out theinvention, showing a tape inserted ready for folding;

Fig. 2 is a plan view of the machine shown in Fig. l;

Fig. 3 is a vertical cross-section of the same on the line 3--3 in Fig.4, showing the tape partly looped; Y

F a is a view of the delivery side of the machine, with the taperemoved;

Fig. 5 is a vertical cross-section of the machine on the line 5-5 inFig. il, showing.

the tape completely looped and the cover inserted prior to pasting;

Fig. G is a View similar to Fig. 5 of the drum and tape, showing theloops folded around. the drum ready for pasting; and

Fig. 7 is a perspective. view of the com pleted book.

The folding machine shown in thev drawings, comprises a base 10 providedwith front and rear pedestals 1l in which is mounted a horizontal axle12. A drum 13 is jmlrnaled for oscillation upon the axle 12. Below thedrum is a transversely curved blade 141., which secured to a cross web15 connecting the pedestals. The blade 14 is arranged horizontally, andextends nearly from. end to end of the Specification of Letters Patent.

drum in proximity Patented July Zeil, 1917. serial No. 49,090.

to its under side. The curve of the blade 14 follows the outline of thedrum, and the front edge of this blade is sharp and lies close againstthe surface of the drum for stripping olf the loops of tape as they areformed. A vertically movable angle clamp 16 is slidably mounted on theweb portion 15 of the frame beneath the curved blade 14. The verticalleg of the angle clamp is arranged below the back edge of the curvedblade 14, and the horizontal leg is normally held up against the rearportion of the curved blade tangcntially thereto by means of a bellcrank lever 17. The curved blade la and the horizontal leg' of the angleclamp 16 together form a clamping means for holding the loops of tape asthey are formed. A finger or latch 18 which is pivoted to the upper armof the bell crank lever engages under the angle clamp at its middle. Theend of the pivoted finger is held in the angle between the vertical andhorizontal legs of the angle clamp by means of a small spring.

The bell crank lever is fulcrumed in the base, and its upper arm extendsunder the drum transversely of its middle and is held up by a spring 19located in the base. One end of the spring is connected to the lower armof the bell crank lever and the other end is attached to a nut 20 whichcan slidein a' narrow space in the base. The nut 2O is mounted on anadjusting screw 2l, the head of which projects through the side wall ofthe base where it can be reached with a screw driver.` The tension ofthe spring can be adjusted by means of the screw and nut to suit thepaper being folded. The upper end of the bell crank lever has a thumbportion 22 for depressing it to remove the folded tape. 1

rThe base or frame has a slot 23 through it on the side of the drum fromwhich the tape or strip of paper is fed for guiding it. The length ofthis guideslot is adjustable for various widths of paper by means of theguide lingers 211 which are slidable along a graduated rod 25 secured tothe base alongside of the slot.

The drum 13 is fitted with a pivoted operating handle 26 for oscillatingit back and forth, and this handle is connected by means of the link 2.7with the cranked end 28 of the paper clamp rod29. The opposite ends ofthe clamp rod 29 are provided with offset or crank portions 30 which arejournaled in brackets on the' edges of the drum. A paper folding blade31 is attached to the ydrum alongside of the papeil clamp rod 29 yandyparallel to and spaced slightly from the surface of the drum. Thisfolding blade .is a tightly stretched thin ribbon of steel, and isgraduated like the rod 25 for centering the paper on the drum.y rlhegraduations may be marked on the drum instead of on the folding blade ifdesired.

The drum is fitted with a full stroke device comprising a swingingfriction detent 32 pivoted on the front pedestal 11 between it and theend of the drum. The lower end of the detent 32 frictionally engages theinner surface of the projecting front edge of the drum bariel, and isheld in engagement therewith by one or the other of the two retainingsprings 33. The projecting edge of the ydrum has two depressions orholes 34, which are arranged to engage 'the detentrespectively at theends of the forward and ret-urn strokes of the drunito reverse thedetent. the base bears against a raised strip 36 on the edge of the drumat the end of the return stroke or half oscillation of the drum, andthis retards the beginning of the looping stroke sufliciently to insurethat the handle 26 shall swing aroundL and throw the paper clamp rod 29into clamping position to feed the paper tape for making the loop. Asimilar retarding action occurs at the beginning ofthe return stroke,due to the folding blade 31 being frictionally held by the clampingmeans forthe loop, thereby causing the.

handle to swingy back and raise the paper clamp rod from the drum topermit the y paper to run freely beneath it. A stop 37 on the edge ofthe drum limits the length of the return stroke and thereby determinesythe length of tape picked up for each loop.

The operation of the device is as follows: 'The tape is led through theguide slot 23 and over the drum passing under the clamp rod 29 andfolding blade 31, and five or sin inches of its length `is pulledthrough be-y neath the folding blade, as shown in Fig. 1. The drum isrotated in the direction of movement of the tape bymeans of the handleuntil the folding blade'brings up'against the web 15 and between thecurved blade 11i and the angle clamp 16. During this stroke Y the handleholds the clamp rod 29. tight Les against thekpaper, thus causing thepaper toy be carried karound with the'drum. The direction of movement ofthe drum is then reversed, and the folding blade is withdrawn frombetween the angle clamp and curved blade, leaving the folded end of theloop caught between the two. The paper clamp is automatically raisedduring the return stroke, and the paper remains motionless, the drumrotating beneath it. At the end of the return stroke the motion of thedrum is again reversed, and a second looping stroke A friction spring 35on is made. The direction of movement of the drinn can be yreversed ateither' end of the stroke, thereby reversing the position of the detent32 g'but the detent 82 prevents 'reversing the direction of movement ofthe drum the curved yblade 14, as shown in Fig; 5. i The open ends ofthe loops are swung up against the drum with one hand, and paste isapplied to their overlapping extremities by means of a brush held in theother hand, after which the free end of the tape which was rstpulledthrough the folding blade y is brought up and laid over the pastedends ofthe loops and against the cover and pasted thereto, as shown inFig. 6. The free end of the cover is next folded down over the pastedends uof the loops, and the book is complete and may bey removed fromthe clamping blades by pressing down the thumb key 22 kon the end of thebell crank lever. The unpasted extremities of the loops when freed fromthe clamping blades assume overlapping positions conforming to theoverlapping at the pasted ends, thereby making easy turning of theleaves for inspecting their contents.

It is evident that changes in the forms and arrangements of the partsmay be made, and the invention is not restricted t0 the partsandarrangements shown and described.

What I Yclaim is:

1. A paper folding device comprising an oscillating drum provided with aypaper gripper and folder, in combination with a fixed clamping bladeadjacent to said drum and a movable clampingblade coperating with'saidfixed blade to receive successively folded loops from said folder andhold them yaok i'io

in stacked relationship, and means for rey leasing said movable clampingbladeto release said stacked loops.

2. 'A paper folding device-comprising. an oscillating drum provided witha paper f clamping device, in' combination with a fixed clamping bladeadjacent to said drum and a movable clamping blade cooperating withysaid fixed blade to receive successive loops of paper .from said drumand hold them in stacked relationship, and means for altergripper andfolderl in combination with a fixed clamping blade adjacent to said drumand a movable clamping blade cooperating with said fixed blade toreceive successively :folded loops from said folder and hold them instacked relationship, and means for operating said paper gripper to gripthe paper on the looping stroke and to release the paper on the returnstroke of said drum.

A paper folding device comprising a "rame, a paper carrier mounted insaid frame and movable back and forth in a curved path about a fixedaxis, a folder bla de mounted flatwise on said paper carrier with itsfolding` edge parallel to said axis for centering the paper, a clampingdevice arranged in the path of movement of said folder blade to receivethe folds of paper from said blade, and a paper guide on said framearranged parallel to the axis of said paper carrier.

5. A paper folding device comprising a frame, a paper carrier mounted insaid frame and movable back and forth in a curved path about a fixedaxis, a folder blade mounted flatwise on said paper carrier parallel toits axis for centering the paper, a paper guide on said frame arrangedparallel to the axis of said paper carrier, releasable clamping meansunder the control of the operator on said paper carrier and adjustablemeans on said paper guide for securing paper of different widths inalinement square with said folder blade, and means for holding the foldsof paper in the path of movement of said folding blade.

G. In combination in a paper folding device, a paper looping devicecomprising an oscillating drum, hand operated means for oscillating saiddrum, and means for compel ling the completion of each stroke prior tostarting the stroke in the opposite direction.

T. In combination in a paper folding device, a paper looping devicecomprising an oscillating drum, hand operated means for oscillating saiddrum, and means for compelling the completion of each stroke prior tostarting the stroke in the opposite direction, said means comprising areversible pawl or detent adapted to bear against the edge of the drumin either of two positions, and holes in the edge of the drum adapted toengage with said pawl at the end of each stroke for reversing itsposition.

8. In combination in a paper folding device, a paper looping' devicecomprising an oscillating drum, hand operated means for oscillating saiddrum, and means for compolling the completion of each stroke prior tostarting the stroke in the opposite direction, said means comprising areversible friction pawl or detent adapted to bear upon the inner edgeof the drum in either of two positions, springs for pressing the end ofsaid pawl into frictional contact with said drum whereby movement of thedrum in one or the other direction is prevented, and holes in the edgeof the drum adapted to engage with said pawl at the end of each strokefor reversing its position.

9. A paper folding device comprising a frame, an oscillating drummounted in said frame having a thin folder blade extending lengthwise ofthe drum and spaced from its surface, a transversely curved clampingblade secured at one edge to said frame and arranged lengthwise of saiddrum close to its surface, the concave face of said blade being next tothe convex periphery of the drum, a movable clamping blade supported atone edge in said frame for movement toward and away from the convex faceof said curved clamping blade, the free edge of said movable clampingblade being spaced from the free edge of said curved clamping bladewhereby said folder blade can pass between said clamping blades.

lO. A paper folding device comprising a frame, an oscillating drummounted in said frame having a thin folder blade extending lengthwise ofthe drum and spaced from its surface, a transversely curved clampingblade secured at one edge to said frame and arranged lengthwise of saiddrum close toV its surface, the concave face of said blade being next tothe convex periphery of the drum, a movable clamping blade supported atone edge in said frame for movement toward and away from the convex faceof said curved clamping blade, said movable clamping blade being flatand adapted to contact tangentially with said curved clamping blade nearits secured edge whereby a space is left between the free edges of saidclamping blades into which said folder blade can enter.

1l. A paper folding device comprising a frame, an oscillating drummounted in said frame, said drum having a folder blade adapted tocoperate with two clamping blades one of which is fixed and one of whichis movable and loosely restrained, said fixed clamping blade beingsecured to said frame and arranged lengthwise of said drum close to itssurface, and said movable clamping blade being guided in said frame formovement toward and away from said fixed clamping blade, said movableclamping blade being freely supported for movement toward and away fromsaid xed clamping blade, and means arranged at the middle point of saidmovable clamping blade for pressing it toward said fixed clamping blade.

12. A paper folding device comprising a frame, an oscillating drummounted in said frame and having a folder blade arranged to enterbetween a fixed clamping blade which is secured to said frame andarranged lengthwise of said drum close to surface,

ion

ELUS

and a movable clamping blade which is freely supported at its inner edgefor move-, ment toward and away 'from said fixed clamping blade,'andmeans arranged at the middle point or" the innerfedge of said movableclamping blade for pressing it toward said fixed clamping blade.

13. A looping` and pasting device oomprising ya drum,` a clamp alongsideof the drinn for retaining the adjacent ends of a stack of loops injuxtaposition alongside of the drum during the pasting operation, yandmeans for releasing said clamp loops have been secured together at theirfree ends. i

14. A looping and pasting device oomprising a drum, a clamp alongside ofthe drum for retaining the adjacent ends offa stack of loops injuxtaposition alongside of the drum during the pasting operation, saidstack of loops being foldable around the` drum to cause their free vendsto be displaced Copies of this patent may be obtained for ve cents each,by addressing the after the yday'oi September, 1915.

angularljr around the drum, and means for releasing said clamp after theloops have been secured together at their free ends.

15. A looping and pastingv device comprising a drum, a clamp alongsideof the drum for retaining the adjacent ends vof a `staoli of loops injuxtaposition alongside of the drum during the ypasting i operation,means for releasing said clamp VJfor inserting j a cover strip betweensaid stack of loops and Said drum,

said Stack of loops and cover foldable around the drum to free" ends tobe displaced angudrum, and ineai'is for reto free the clamped endsSignedr at St. Louis, Missouri, this 2nd WILLIAM ii."Mannino.`

Commissioner of Patents,

Washington, D. G.

been secured y

